Moerman began his pro career in 2005, with the senior men's team of
Chorale Roanne Basket. He played for Roanne for two seasons. For the 2007–08 season, he signed with
JSF Nanterre of the
French 2nd Division. From 2008 to 2011, he played with the French club
Orléans Loiret Basket. In July 2011, he signed with the French club
SLUC Nancy Basket. In June 2012, he signed a three-year deal with
Bilbao Basket of the Spanish
Liga ACB. After one season with the club, he left Bilbao. In June 2013, he returned to France, and signed a two-year deal with
Limoges CSP. With Limoges, he won the
2013–14 French Pro A season's championship. In the
2014–15 season, Moerman was named the
league MVP of the
French Pro League. In July 2015, he signed with the
Turkish Super League club
Banvit. After one season, he parted ways with Banvit. On 14 July 2016, he signed a 1+1 deal with the Turkish club
Darüşşafaka Doğuş. The Turkish team opted out of their deal on 24 June 2017. On 12 July 2017, he signed with the Spanish club
FC Barcelona Lassa, for the 2017–18 season. On 1 July 2018, Moerman signed a two year (1+1) deal with the Turkish club
Anadolu Efes. He averaged 6.4 points, 4.6 rebounds, and 1.1 assists per game during the 2020–21 season. On 18 June 2021, Moerman renewed his contract with the Turkish club. On 29 June 2022, Moerman officially parted ways with the Turkish club after four seasons. On July 22, 2022, he signed a one year deal with
AS Monaco Basket. On January 26, 2023, he signed with
Zenit Saint Petersburg. On January 22, 2025, Moerman signed with the
Taipei Taishin Mars of the
Taiwan Professional Basketball League (TPBL). ==Career statistics==